Two J-11 fighter jets take off for routine training on January 8. Several J-11 fighter jets assigned to an aviation division of the PLA Air Force took off from a military airport in northwest China and conducted a routine training exercise on January 8, 2016. (Photo: 81.cn)

Two J-11 fighter jets take off for routine training on January 8. Several J-11 fighter jets assigned to an aviation division of the PLA Air Force took off from a military airport in northwest China and conducted a routine training exercise on January 8, 2016. (Photo: 81.cn)